Melting of nanocrystals embedded in a crystal matrix heated by nanosecond laser pulses

Journal Article · Sat Sep 15 00:00:00 EDT 2012 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776112070205· OSTI ID:22069346

Dvurechenskii, A V; Ivlev, G D; Gatskevich, E I; Malevich, V L ^[1]

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1. National Academy of Sciences of Belarus, Stepanov Institute of Physics (Belarus)

The kinetics of phase transformations of nanocrystals in a crystal matrix is considered upon non-stationary heating by laser pulses. The melting and crystallization kinetics of nanocrystals is described taking into account their size, shape, elemental composition, and elastic deformations appearing due to the mismatch of the lattice constants for nanocrystals and the matrix. The possibility of decreasing the dispersion of nanocrystals over their size in heterostructures with quantum dots is predicted. As an example, melting of Ge nanocrystals in a Si matrix is considered.

• OSTI ID: 22069346
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 115, Issue 3; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CRYSTALLIZATION
CRYSTALS
DEFORMATION
GERMANIUM
HEATING
LASER RADIATION
LATTICE PARAMETERS
MATRIX MATERIALS
MELTING
PULSED IRRADIATION
QUANTUM DOTS
SILICON